Combined type-writing and computing machine.



3 SHEETS-SHEET I.

i. N, IHURNTON. COMBINED TYPE wmm ANU CGMPUTING APPLSCATIOH HLD APR. 1l,

cranks v4 to rock the same and thus swing type-bars 5 up rearwardly against the front side of a platen 6 mounted to rotate on a carriage 7. The carriage 7 is arranged to travel step by step at the actuation of any of the keys l or 2, under the control of an escapement mechanism indicated in general at 8. This escapement mechanism includes a rack bar 9 swingingly mounted on the carriage I by means of arms 10. The rack bar 9 engages a pinion 1l controlled in its rotation by an escapement wheel 12,'which in turn is controlled by fixed and movable dogs 13 oscillated at each operation of a character key through the intermediary of a universal frame 14, which is engaged by heels 15 on the type-bars 5.

The carriage 7 not only has a step-by-step movement, but for the purpose of -positioning the same for di'erent zones of the worksheet, it may be given a jump or tabulating movement. For this purpose, there is provided a series of tabulating keys 16, mounted on key-levers 17 which are pivoted intermediate their ends and support at their rear ends, plungers 18 arranged to be projected up at the actuation of one of the keys 16, into the path of stops 19. The stops 19 are adjustably mounted on a rack 20 carried by the carriage 7 and determine by their position, the particular zone at which thecarriage' 7 will stop. The plungers 1'8, of which there' may be 4a number correspondingr to the number of tabulating keys 16, determine theexact denominational column or letterspace in any particular zone at which the carriage w11 st-op for a given oneI of the stops 19. When any one of the plungers 18 is raised by its associated tabulating keys 16, it rocks a universal frame lever 21, which engages in a notch 22 provided in each of the plungers 18, and in turn pulls down on a link 23 to rock a lever 24 bearing at its forward end 'a contact roller 25, which underliesthe rack bar 9 and is arranged to raise the same out of engagement with the pinion 11 at the actuation of any of the tabulating keys 16.

In addition to actuating the type-bars 5, the numeral keys 1 also actuate pin-setting mechanism, indicated in general at 26 to accumulate numbers correspon-ding to the particular numeral keys actuated. For this purpose, each numeral key is provided with a depending thrust link 27, which rocks an associated shaft 28 carrying a linkage 29. There is a series of these linkages corresponding to" the series of numeral keys 1, and they are arranged in superposed relation to a cross row of pins 30, so that they can set any one of the pins in the cross row when the associated bar 31 on which the pin ism'ounted, is raised above, its fellows.

Each of the bars 31 carries .nine pins co1'- responding to the numerals 1 to 9, and these pins are settable from a position projecting above the bars to a position projecting below the bars where they extend into the path of a cross-bar 32 on a general operator 33, which may be actuated through interconnected gearing 34 from any suitable source of power indicated by the handle 3.5. The bar 32 engages whatever pins 30 are set up on the several pin-bars 31, so as to move them forward variable distances corresponding to the articular pins set, whereby computing whee s 36, one for each of the bars 31, are rotated a corresponding amount. The connection in this instance is shown to be made by a pinion 37 secured to each of the computing wheels 36, and a rack 38 formed on each of the bars 31. The computing wheels in this instance, .are also in the form of dial wheels having numbers inscribed on their outer periphery, so that they can exhibit the same and thus show the particular digits which have been run up thereon.

In order to raise the rack-bars 21 individually to enable the setting 0f p'nsthereon, there is mounted on the carriage 7, so as to traveltherewith, one or more selecting tappets 39 according to the vnumber' of computing columns desired. In this instance, only one selecting tappet is shown, although many more might be used. The select-ing tappet 39 carries thereon a camming dog 40, which is arranged to engage one by one, during the step-by-ste movement of the carriage 7, a series o jacks 41 pivotally mounted intermediate their` ends on a framev tension of a spring 44, without actuating the y jacks 41, it being pivotally mounted on the body of the tappet 39 for this purpose.

Each of the jacks 41 overlies, at its rear end, a thrust rod 45, which is-connected at its bottom end to a corresponding transposition linkage 46, which is' connected to raise "l one of the pin-hearing oars 3l. '.llie transositiox linkages 46 are such that the jacks il While operated from right to left .verirrt/im .fuiviil raise the pin-hers 3l roin left to righi in succession.

it is not always desired, even when a ninnor of selecting tappets 39 are used, to have t-he computing columns in the seine location.

i fllenCe, it 1D.,

is necessary to adjust the position Kotlie tappet 39 When-the corresponding computing; column is changed in its location 'along the typewriting line on the worksheet; j For this purpose, supporting bars end 48 are provided for rthe teppets 89 nlong which they may bey adjusted. The

supporting bers 47 and 48 are mounted on 'the' auxilio@ freine l-S, which in turn is mounted on the carriage 7 and arranged to trvel therewith,

The reer end of the tnppet 39 is provided with e cylindrical or tubular opening 50, so that the supporting ber 47 can he threaded i .I therethrough and maintain the'tzippet therevvinentof the tappet-Y therezilong.

tion of the toppet 39y on the loiir i7 is deter- Awhen .along the carriage.

on While not interfering with the adjusttlny posifflor engaging the tiippet 39 and holding the end rigid Aagainst lateral inovenient lonce placed in any definite position For this purpose, the

ront

Tour is provided with :i rack 5t between the teeth' of which :i ril) 55 on the tzippe hgrher than that shown in Fig. 5 end lll'is arranged to engage. i

it will he noted that the eppei- 3f? eiin he, entirely"detached from the bars i7 and 48. hy beingy swung up to :i position slightly noi'eii toverd the end of the.. hor 4 the l lier L17 being reduced at both ends, es :it 56',

:is to pcriiiitsuch detiicliingv movement lijf.' passing the reduced portion of the hai' through :i slot 5i' coinrnuiHeatingwith the o ienin f 50. The reduced ends 53 oi' ine lini- #l-Z' ninv he threaded, iis indicated in (3.

v 'to enable the mounting' of the, hor on the niixiliziry freine 4S hy ineens of plates This threaded portion may also enable, the

y'zuliustment tnerezilong' of sleeved nuts 5S), Gil

which extend through side plates (30 oic :i universel freine 6l :ind forni pivotal monniingfs therefor.

Ilhis universel freine 6l includes u unirersiil cross oor 62. which is arranged io overlie the tz'ippets 39 and return theni i'roni tion. ln this instance, the com roller :in ohnorinol raised position, such is shown n Figi 5 'ce a norinfil depressed position. such :is shown in Fig. el. rlhe downivnril motion of the universel bnr G2 is limited. however, by stop pins G3, which engage notches 6% Ain the side plates GO. This is to prevent the burden oi the universel tranne provided a conical enne roller G71y which nnrv have certain functions, such :is rnisin; the topper. :tor action, which functions. however. are not pertinentto this particular inveni when it is desired to locato the tnppet 'loi' n particular column, is raised to the lihcV :"i position and dropped into a position-linding notch 68 provided in :i top plete G9 oi! the frame 42, which incloscs and supports the denominational jocks 4l. The positionfindingnotch 68 is coin-formed so that when the carriage is traversed in one, direction or the other. the roller (il will readily ride ont of the suine and drop to its normal position under the urgency of the springs (S5 :lifter it has passed beyond the. limits of the top plate 69.

The device may oe e ed in severe.; ways for 'the purpose of locating' :i computing column ntany pointofthetypeivritten line. ln thus locatingi the computing1 coluinn, it is lnivenient to tnke sonie, particular point in the typeii'ri ti en coliiinn :is n reference point, and usually the ileeinizil point is chosen, although his is piirel)T arbitrary. The decimal point is eonvenieno, however. oecnuse in many hill sheets there, provided :i line separating; the dollars und cents. it' it is nssuineil that the, point on the, iront-sheet. where it desired to locate 'the decininl point is indi cated`r one method ot operating: the device lo properly position the tnppet would be lo merely shift the cui-ringe. until the deciinzil point. position on the sheet comesl to the. printing; point :is indicated in Fig. l. The front scale. 7i located on the ironie oi' lhe typewriter :iin then he referred to 4with the :iid ot' the indicating pointer M2 located ou the carriage. :nui in this instance, the deeinml point position will he show to on located iu"` i0 on the scale. vWith the oerlili) lil rinse. i'lius located. the, tn i iet 39 is slid nlono' ieelzsf so that the digits of the number :is

selected by said teppet will correspond in denominational order with the digits as printed in the'particular column selected. After thus positioning the tappet, the carriage is, of course, moved to disenga e the roller 67 fronithe notch 68 and toV ree it from 'the plate y69. The tappet thus freed drops to the proper position under the impulse of the frame 61, so that it may cooperate with the denominational jack corresponding t0 the first digit of the number to be printed. In falling to its proper position, the pin 51 ot the tappet will, of course, engage one of the notches 52, and the rib 55 will engage between the teeth of the rack 54, so that the tappet will be locked -against transverse movement when in position to select the denominational devices or jacks.

Anotherl Wayot using the device is to swing the tappet up to a position slightly greater than that shown in Fig. 5, and in a position lateral ofthe carriage, such that vthe tappet will be opposite the positioning notch 68. Then, while holding the tappet in this position, the typewriter carriage is moved'to position the particular digit of the column or/the decimal noint opposite .the printing point. The tappet is then released and dropped into the notch 68. The

remaining manipulation is the same as that described in the irst example o f the use of the device.

A third method of using the device would be to set the tabulator stop at that point on the Scale corresponding to the printing of the decimal point atv the desired location on the work-sheet. The tabulator key 'is then depressed to position the carriage in a0- cordancel with' the tabulator stop which has been thus set. The tappet 39 is then slid along and dropped into the positioning notch. The further procedure is the same v as that indicated in the first described method of use of the device.

It will thus be seen that by using the finding notch, it is not 'necessary to try the position of the `tappet a number of times before it is properly located, and that any inexperienced person can bring the selecting tappet to -a position corresponding to the position of the stop 19 and the location-of the decimal point desired on the work-sheet. Of course, if the -tappet 39 is located accurately for the decimal point, it Will be located for all other letter spaces of the particular computing zone, and thus for every denominational column of the zone, and will hence actuate the jacks 41 at the proper times to correspond with the printing of the same denominations on the work-sheet on the platen.

Variations may be resorted to Within the scope of the invention, and portions of the improvements may be used Without others.

Having thus described my invention, I claim:

1. The combination with a typewriting mechanism including a traveling carriage,

of a computing mechanism, atappet carried 4 by said carriage for causing the denomination bemg computed in and by said com- -puting mechanism, with thedenomina'tional columns of said typewriting mechanism, and a member iixed relatively to said carriage having a position-determining l notch therein to receive said tappet and thereby locate said tappet on said carriage in'- a A position such as to control the correspondence of the computed denomination With the typewritten denomination of the zone at the print-ing point of said typewriting mecha- 2. The combination with a typewriting mechanismincluding a carriage and means for determining the position of said carriage for a given computing zone, of a computing mechanism, a tappet for causing the denominations being computed in and by said computing mechanism with the denominational columns being printed by said typewriting mechanism, a series of denominational jacks connected to said computingmechanism and arranged to be operated se'rfz'atim by said tappet, and a member. conf venient to said carriage and having a ref erence point Vcorresponding to one of said jacks for properly locating said tappet on said carriage to coperate in proper sequence with all of said jacks.

3. The combination with a typewriting,

mechanism including a travelingy carriage,

of a computing mechanism, a tap et mountzone at the printing point ofsaid type.-

writing mechanism.

4f. The combination with a carriage, .of a Y* tappet pivotally mounted on said carriage, and means for returning said tappetto a normally depressed position, sald meansl having a considerable clearance with respect 'to said tappet when said tappet is in its llowermost position, admltting of a free upward movement of-said tappet before engaging with said returning means.

5. The combination witha carriage, of a series of denominational members, a tappet on said carriage arranged to control the operation of said denominational members, a pair of rods for supporting said tappet, 0n said carriage, positloning means for locating said tappet properly on said carriage,

against. hltolni movement when said toppet is in position. to engage said denominational sbiovting devices, said tappot, boing arranged to swing to :i position whereby said pin is disongngod from the teeth of said bnr, so that said tappct may thon bo niovod to -tliti'ol'ontlateral positions to Cooperate with said denominational selecting devices in different columns to agree with the columns as printed-by the, typewriting mechanism.

JOHN N. THORNTON. iVi tinesses;

TITUs H. IRONS, JULIUS DUCKSTINE. 

